I think it's generally frowned upon to do percentages of percentages.
For example: An increase from 70 bananas to 86 bananas is an increase of 16 bananas, or 22 per cent.
But an increase from 70 per cent to 86 per cent is an increase of 16 per cent.
For example: An increase from 70 bananas to 86 bananas is an increase of 16 bananas, or 22 per cent.
But an increase from 70 per cent to 86 per cent is an increase of 16 per cent.
A "22% increase" sounds like the underlying number of positive results increased by 22%, which it didn't. It increased by more than 22% because the total number of publications is increasing too.
An "increase of 16 percentage points" would have been much more standard.